111 lines
2.6 KiB
Go
111 lines
2.6 KiB
Go
/*
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* LURE - Linux User REpository
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* Copyright (C) 2023 Elara Musayelyan
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package osutils
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import (
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"io"
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"os"
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"path/filepath"
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)
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// Move attempts to use os.Rename and if that fails (such as for a cross-device move),
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// it instead copies the source to the destination and then removes the source.
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func Move(sourcePath, destPath string) error {
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// Try to rename the source to the destination
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err := os.Rename(sourcePath, destPath)
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if err == nil {
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return nil // Successful move
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}
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// Rename failed, so copy the source to the destination
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err = copyDirOrFile(sourcePath, destPath)
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if err != nil {
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return err
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}
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// Copy successful, remove the original source
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err = os.RemoveAll(sourcePath)
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if err != nil {
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return err
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}
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return nil
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}
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func copyDirOrFile(sourcePath, destPath string) error {
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sourceInfo, err := os.Stat(sourcePath)
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if err != nil {
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return err
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}
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if sourceInfo.IsDir() {
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return copyDir(sourcePath, destPath, sourceInfo)
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} else if sourceInfo.Mode().IsRegular() {
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return copyFile(sourcePath, destPath, sourceInfo)
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} else {
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// ignore non-regular files
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return nil
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}
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}
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func copyDir(sourcePath, destPath string, sourceInfo os.FileInfo) error {
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err := os.MkdirAll(destPath, sourceInfo.Mode())
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if err != nil {
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return err
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}
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entries, err := os.ReadDir(sourcePath)
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if err != nil {
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return err
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}
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for _, entry := range entries {
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sourceEntry := filepath.Join(sourcePath, entry.Name())
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destEntry := filepath.Join(destPath, entry.Name())
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err = copyDirOrFile(sourceEntry, destEntry)
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if err != nil {
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return err
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}
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}
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return nil
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}
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func copyFile(sourcePath, destPath string, sourceInfo os.FileInfo) error {
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sourceFile, err := os.Open(sourcePath)
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if err != nil {
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return err
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}
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defer sourceFile.Close()
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destFile, err := os.OpenFile(destPath, os.O_CREATE|os.O_TRUNC|os.O_RDWR, sourceInfo.Mode())
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if err != nil {
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return err
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}
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defer destFile.Close()
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_, err = io.Copy(destFile, sourceFile)
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if err != nil {
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return err
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}
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return nil
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}
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